'The villain of the piece–a German spy–was played by Captain Conant. His endeavor to wreck the career of a young member of the idle rich (Captain Newmarsh, M.C.), and the triumph of the latter who, after temporary weakness, sought "his only chance" of moral rehabilitation on the battlefield, formed the motif of the film.'
Source:
'His Only Chance', Leader, 25 May 1918, p.42.